Head Trauma and Learning
November 23, 2012
Researchers at my alma mater have joined their voices to the growing chorus of concerns about the effects of repeated blows to the head.
A study of the cognitive effects of head impacts on members of Dartmouth College football, hockey, track, crew and Nordic ski teams compared before and after season results on learning and memory skills. Participating athletes also came from Brown and Virginia Tech.
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22 percent of athletes in contact sports had lower results on learning and memory skills tests after their season.
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Only 4 percent of athletes in non-contact sports posted lower test results.
The researchers caution that it is unknown at this point how long these negative effects may last, but they also note there is some correlation between test results and how hard the athletes were hitting heads.
This adds to the mounting evidence that rules writers, program sponsors, coaches and officials must look for and implement a variety of measures to reduce the frequency and severity of head impacts in both practice and competition in all sports.
Girls, Boys and Concussions
September 13, 2016
On Monday the Michigan High School Athletic Association announced the major findings from the first year that member high schools were required to report all suspected concussions in the practices and competitions conducted in the 28 sports served by the MHSAA.
It surprises no one that 11-player and 8-player football ranked first and third, with 49 and 34 head injuries per thousand participants, respectively.
And while I’m told it’s not surprising to the experts that girls report more head injuries than boys, it is stunning to me how very many more head injuries are reported for girls than boys.
In sports with identical playing rules, girls reported head injuries with approximately twice the frequency that boys did.
In soccer, girls reported 30 head injuries per 1,000 participants, compared to 18 per 1,000 for boys.
In basketball, girls reported 29 head injuries per 1,000 participants, compared to only 11 per 1,000 for boys.
Girls reported concussions at the rate of 11 per 1,000 participants in softball, while boys reported just 4 per 1,000 in baseball.
Only a small percentage of either girls or boys were cleared by licensed medical personnel to return to activity in less than six days, and more than half were withheld between six and 15 days in soccer and basketball. The data suggests that clearance for girls to be returned to activity was slightly more gradual than it was for boys.
Researchers and reporters may find dozens of other observations and curiosities from the summary of 4,452 confirmed head injury reports submitted by the MHSAA’s 755 member high schools for MHSAA-supported sports in 2015-16; but what has the MHSAA’s attention is this giant gender difference.
Is this gender difference accurate, and if so, what are the physiological factors involved that make it so?
Is there a tendency for over-reporting by females, or under-reporting by males, and if so, what are the social and/or psychological factors that may cause this?
Regardless, what does this mean for how coaches work with boys and girls; and what does that mean for how we prepare coaches through the MHSAA Coaches Advancement Program?
The MHSAA will take to an even deeper level its nearly 30-year partnership with the Institute for the Study of Youth Sports at Michigan State University to explore the issues related to coaches education that have emerged as a result of the first year of mandated concussion reporting for Michigan high schools.
The 2015-16 school year was only a start; it identified some initial themes. The more important value will be realized after the 2016-17 school year, and subsequent school years, when year-over-year comparisons will be made and trends will become apparent that will demand action to further promote the welfare of participants in school-sponsored sports.